# Mental Arithmetic Challenge vs Brain

The clearest difference is in-app purchases: Mental Arithmetic Challenge at none against Brain's 2. Mental Arithmetic Challenge also leads on iOS requirement (9.0 vs 13.0). On price, ads and device support there is nothing between them.

Both are free to download. Brain sells 2 in-app purchases, starting at $2.99 per month. Mental Arithmetic Challenge asks for nothing beyond the download.

## The numbers

| Metric | Mental Arithmetic Challenge | Brain |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Daily |
| Size | 34 MB | 15 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zhuhai Record Yi Technology Co.,Ltd.](https://appshunter.io/developer/1638483191) | [YATB LLC](https://appshunter.io/developer/1621951581) |

## What reviewers say

### Mental Arithmetic Challenge

[App page](https://appshunter.io/ios/app/mental-arithmetic-challenge/id1668985552)

**Features:** macOS Compatibility

**In-app purchases:** none


### Brain

[App page](https://appshunter.io/ios/app/brain-mental-math-practice/id6472009003)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Math Problem Set Generator Pro | $2.99 | per month |
| Math Problem Set Generator Pro | $19.99 | per year |


## Frequently asked questions

### Is Mental Arithmetic Challenge free?

Mental Arithmetic Challenge is free to download, with no in-app purchases.

### Is Brain free?

Brain is free to download, with in-app purchases available.

### Do Mental Arithmetic Challenge or Brain have ads?

Neither Mental Arithmetic Challenge nor Brain shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*